TEAS 7 Math Practice Test

Correct Answer: C

Rationale: The correct answer is C because it asks for the greatest percentage of a specific group among the staff at Hospital X and Hospital Y. This is a broader group compared to the other choices, making it more likely to have a higher percentage. Choices A, B, and D are specific to Hospital X or Y only, limiting the pool of individuals being considered and reducing the likelihood of having the highest percentage. Choice C considers the combined staff of two hospitals, increasing the pool of individuals and making it more probable to have a higher percentage of doctors among the staff.

Correct Answer: B

Rationale: To calculate a 20% decrease from 400 mg, we first find 20% of 400, which is 80 mg. Subtracting 80 mg from the current dosage of 400 mg gives us the new dosage after the decrease: 400 mg - 80 mg = 320 mg. Therefore, the correct answer is B (80 mg). Choices A, C, and D are incorrect as they do not accurately reflect a 20% decrease from the original 400 mg dosage.

Correct Answer: A

Rationale: To find the number of respondents who use smartphones for email, we multiply the percentage (60%) by the total number of respondents (5,000). 60% of 5,000 = 0.60 * 5,000 = 3,000 respondents. Therefore, choice A (3,000 respondents) is the correct answer. Choices B, C, and D are incorrect because they do not reflect the correct calculation based on the given percentage and total number of respondents.

Correct Answer: D

Rationale: To find the actual distance, we multiply the distance on the map by the scale factor. 3.2 inches x 45 miles = 144 miles. Therefore, choice D is correct. Choice A is incorrect because it uses the scale factor incorrectly. Choice B and C are incorrect as they do not consider the correct scale factor in the calculation.

Correct Answer: B

Rationale: The correct answer is B: 1 centimeter. The average length of a human eyelash is around 1 centimeter. This length is suitable for protecting the eyes from debris and dust particles while allowing them to function properly. Choice A, 1 nanometer, is far too small for an eyelash. Choice C, 1 meter, and choice D, 1 kilometer, are both significantly longer than the actual length of a human eyelash, making them unrealistic and incorrect options.